<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<head>
	<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
	<title>选择器</title>
	<style type="text/css">
		h1{
			color: red;
			font-size: 20px;
		}
		p{
			color: blue;
			font-size: 50px;
		}

		#box{
			color: #FFAEC9;
		}
		#box1{
			color: #B5E61D;
		}

		.blue{
			color: blue;
		}
		span,strong,ul{
			font-size: 40px;
		}
		body ul#box li.list_item{
			color: black;
		}
		.link{
			color: red;
		}
		.link:hover{
			color: blue;
			font-size: 30px;
		}

	</style>
</head>
<body>
	<!-- <p>学并思P</p>
	<h1>学并思</h1>
	<h1>学并思</h1>
	<h1 id="box">学并思</h1>
	<h1 id="box1">学并思</h1>
	<h1 class='blue'>学并思</h1>
	<h1 class='blue'>学并思</h1>
	<h1 class='blue'>学并思</h1>
	<h1>学并思</h1>
	<p>平台</p> -->

	<!-- <span>学并思</span>
	<strong>学并思</strong>
	<ul>学并思</ul> -->

	<!-- <ul id="box">
		<li class="list_item">学并思</li>
		<li class="list_item1">学并思</li>
		<li class="list_item1">学并思</li>
		<li class="list_item1">学并思</li>
		<li class="list_item1">学并思</li>
	</ul>
	<ul id="box1">
		<li class="list_item">学并思</li>
		<li class="list_item">学并思</li>
		<li class="list_item">学并思</li>
		<li class="list_item">学并思</li>
		<li class="list_item">学并思</li>
	</ul> -->

	<a href="" class="link">百度一下</a>
</body>
</html>